is that a 6 week flowering strain....

I built my ebb n flow with the clear tubs too....but before I started I began by spray painting w/ paint made for plastic....Painted it black first then white....so it's dark on the inside for no light to the roots and reflective on the outside to divert the light back to the underside of the leaves...make sure the res is lightproof too..

The size of the buds could also be strain specific too...hope this helps you 2, some...

keep it up:thumbsup:

D